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Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git…
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…/evalenti/linux-soc-thermal

Pull more thermal managament updates from Zhang Rui:
 "Specifics:

   - Exynos thermal driver refactoring.  Several cleanups, code
     optimization, unused symbols removal, and unused feature removal in
     Exynos thermal driver.  Thanks Lukasz for this effort.

   - Exynos thermal driver support to OF thermal.  After the code
     refactoring, the driver earned the support to OF thermal.  Chip
     thermal data were moved from driver code to DTS, reducing the code
     footprint.  Thanks Lukasz for this.

   - After receiving the OF thermal support, the exynos thermal driver
     now must allow modular build.  Thanks Arnd for detecting, reporting
     and fixing this.

   - Exynos thermal driver support to Exynos 7 SoC.  Thanks Abhilash for
     this.

   - Accurate temperature reporting on Rockchip thermal driver, thanks
     to Caesar.

   - Fix on how OF thermal enables its zones, thanks Lukasz for fixing.

   - Fixes in OF thermal examples under Documentation/.  Thanks Srinivas
     for fixing"

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
  thermal: exynos: Add TMU support for Exynos7 SoC
  dts: Documentation: Add documentation for Exynos7 SoC thermal bindings
  cpufreq: exynos: allow modular build
  thermal: Fix examples in DT documentation
  thermal: exynos: Correct sanity check at exynos_report_trigger() function
  thermal: Kconfig: Remove config for not used EXYNOS_THERMAL_CORE
  thermal: exynos: Remove exynos_tmu_data.c file
  thermal: rockchip: make temperature reporting much more accurate
  thermal: exynos: Remove exynos_thermal_common.[c|h] files
  thermal: samsung: core: Exynos TMU rework to use device tree for configuration
  dts: Documentation: Update exynos-thermal.txt example for Exynos5440
  dts: Documentation: Extending documentation entry for exynos-thermal
  cpufreq: exynos: Use device tree to determine if cpufreq cooling should be registered
  thermal: exynos: Modify exynos thermal code to use device tree for cpu cooling configuration
  thermal: exynos: Provide thermal_exynos.h file to be included in device tree files
  thermal: exynos: cosmetic: Correct comment format
  thermal: of: Enable thermal_zoneX when sensor is correctly added
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torvalds committed Feb 20, 2015
2 parents e3a1f6c + 6c24739 commit 3d88348
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21 changes: 21 additions & 0 deletions Documentation/devicetree/bindings/thermal/exynos-thermal.txt
View file
Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,7 @@
"samsung,exynos5420-tmu-ext-triminfo" for TMU channels 2, 3 and 4
Exynos5420 (Must pass triminfo base and triminfo clock)
"samsung,exynos5440-tmu"
"samsung,exynos7-tmu"
- interrupt-parent : The phandle for the interrupt controller
- reg : Address range of the thermal registers. For soc's which has multiple
instances of TMU and some registers are shared across all TMU's like
Expand All @@ -32,13 +33,28 @@
- clocks : The main clocks for TMU device
-- 1. operational clock for TMU channel
-- 2. optional clock to access the shared registers of TMU channel
-- 3. optional special clock for functional operation
- clock-names : Thermal system clock name
-- "tmu_apbif" operational clock for current TMU channel
-- "tmu_triminfo_apbif" clock to access the shared triminfo register
for current TMU channel
-- "tmu_sclk" clock for functional operation of the current TMU
channel
- vtmu-supply: This entry is optional and provides the regulator node supplying
voltage to TMU. If needed this entry can be placed inside
board/platform specific dts file.
Following properties are mandatory (depending on SoC):
- samsung,tmu_gain: Gain value for internal TMU operation.
- samsung,tmu_reference_voltage: Value of TMU IP block's reference voltage
- samsung,tmu_noise_cancel_mode: Mode for noise cancellation
- samsung,tmu_efuse_value: Default level of temperature - it is needed when
in factory fusing produced wrong value
- samsung,tmu_min_efuse_value: Minimum temperature fused value
- samsung,tmu_max_efuse_value: Maximum temperature fused value
- samsung,tmu_first_point_trim: First point trimming value
- samsung,tmu_second_point_trim: Second point trimming value
- samsung,tmu_default_temp_offset: Default temperature offset
- samsung,tmu_cal_type: Callibration type

Example 1):

Expand All @@ -51,6 +67,7 @@ Example 1):
clock-names = "tmu_apbif";
status = "disabled";
vtmu-supply = <&tmu_regulator_node>;
#include "exynos4412-tmu-sensor-conf.dtsi"
};

Example 2):
Expand All @@ -61,6 +78,7 @@ Example 2):
interrupts = <0 58 0>;
clocks = <&clock 21>;
clock-names = "tmu_apbif";
#include "exynos5440-tmu-sensor-conf.dtsi"
};

Example 3): (In case of Exynos5420 "with misplaced TRIMINFO register")
Expand All @@ -70,6 +88,7 @@ Example 3): (In case of Exynos5420 "with misplaced TRIMINFO register")
interrupts = <0 184 0>;
clocks = <&clock 318>, <&clock 318>;
clock-names = "tmu_apbif", "tmu_triminfo_apbif";
#include "exynos4412-tmu-sensor-conf.dtsi"
};

tmu_cpu3: tmu@1006c000 {
Expand All @@ -78,6 +97,7 @@ Example 3): (In case of Exynos5420 "with misplaced TRIMINFO register")
interrupts = <0 185 0>;
clocks = <&clock 318>, <&clock 319>;
clock-names = "tmu_apbif", "tmu_triminfo_apbif";
#include "exynos4412-tmu-sensor-conf.dtsi"
};

tmu_gpu: tmu@100a0000 {
Expand All @@ -86,6 +106,7 @@ Example 3): (In case of Exynos5420 "with misplaced TRIMINFO register")
interrupts = <0 215 0>;
clocks = <&clock 319>, <&clock 318>;
clock-names = "tmu_apbif", "tmu_triminfo_apbif";
#include "exynos4412-tmu-sensor-conf.dtsi"
};

Note: For multi-instance tmu each instance should have an alias correctly
Expand Down
74 changes: 37 additions & 37 deletions Documentation/devicetree/bindings/thermal/thermal.txt
View file
Original file line number Diff line number Diff line change
Expand Up @@ -251,24 +251,24 @@ ocp {
};

thermal-zones {
cpu-thermal: cpu-thermal {
cpu_thermal: cpu-thermal {
polling-delay-passive = <250>; /* milliseconds */
polling-delay = <1000>; /* milliseconds */

thermal-sensors = <&bandgap0>;

trips {
cpu-alert0: cpu-alert {
cpu_alert0: cpu-alert0 {
temperature = <90000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "active";
};
cpu-alert1: cpu-alert {
cpu_alert1: cpu-alert1 {
temperature = <100000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "passive";
};
cpu-crit: cpu-crit {
cpu_crit: cpu-crit {
temperature = <125000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "critical";
Expand All @@ -277,17 +277,17 @@ thermal-zones {

cooling-maps {
map0 {
trip = <&cpu-alert0>;
cooling-device = <&fan0 THERMAL_NO_LIMITS 4>;
trip = <&cpu_alert0>;
cooling-device = <&fan0 THERMAL_NO_LIMIT 4>;
};
map1 {
trip = <&cpu-alert1>;
cooling-device = <&fan0 5 THERMAL_NO_LIMITS>;
trip = <&cpu_alert1>;
cooling-device = <&fan0 5 THERMAL_NO_LIMIT>;
};
map2 {
trip = <&cpu-alert1>;
trip = <&cpu_alert1>;
cooling-device =
<&cpu0 THERMAL_NO_LIMITS THERMAL_NO_LIMITS>;
<&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
};
};
};
Expand All @@ -298,13 +298,13 @@ used to monitor the zone 'cpu-thermal' using its sole sensor. A fan
device (fan0) is controlled via I2C bus 1, at address 0x48, and has ten
different cooling states 0-9. It is used to remove the heat out of
the thermal zone 'cpu-thermal' using its cooling states
from its minimum to 4, when it reaches trip point 'cpu-alert0'
from its minimum to 4, when it reaches trip point 'cpu_alert0'
at 90C, as an example of active cooling. The same cooling device is used at
'cpu-alert1', but from 5 to its maximum state. The cpu@0 device is also
'cpu_alert1', but from 5 to its maximum state. The cpu@0 device is also
linked to the same thermal zone, 'cpu-thermal', as a passive cooling device,
using all its cooling states at trip point 'cpu-alert1',
using all its cooling states at trip point 'cpu_alert1',
which is a trip point at 100C. On the thermal zone 'cpu-thermal', at the
temperature of 125C, represented by the trip point 'cpu-crit', the silicon
temperature of 125C, represented by the trip point 'cpu_crit', the silicon
is not reliable anymore.

(b) - IC with several internal sensors
Expand All @@ -329,7 +329,7 @@ ocp {
};

thermal-zones {
cpu-thermal: cpu-thermal {
cpu_thermal: cpu-thermal {
polling-delay-passive = <250>; /* milliseconds */
polling-delay = <1000>; /* milliseconds */

Expand All @@ -338,12 +338,12 @@ thermal-zones {

trips {
/* each zone within the SoC may have its own trips */
cpu-alert: cpu-alert {
cpu_alert: cpu-alert {
temperature = <100000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "passive";
};
cpu-crit: cpu-crit {
cpu_crit: cpu-crit {
temperature = <125000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "critical";
Expand All @@ -356,7 +356,7 @@ thermal-zones {
};
};

gpu-thermal: gpu-thermal {
gpu_thermal: gpu-thermal {
polling-delay-passive = <120>; /* milliseconds */
polling-delay = <1000>; /* milliseconds */

Expand All @@ -365,12 +365,12 @@ thermal-zones {

trips {
/* each zone within the SoC may have its own trips */
gpu-alert: gpu-alert {
gpu_alert: gpu-alert {
temperature = <90000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "passive";
};
gpu-crit: gpu-crit {
gpu_crit: gpu-crit {
temperature = <105000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "critical";
Expand All @@ -383,7 +383,7 @@ thermal-zones {
};
};

dsp-thermal: dsp-thermal {
dsp_thermal: dsp-thermal {
polling-delay-passive = <50>; /* milliseconds */
polling-delay = <1000>; /* milliseconds */

Expand All @@ -392,12 +392,12 @@ thermal-zones {

trips {
/* each zone within the SoC may have its own trips */
dsp-alert: gpu-alert {
dsp_alert: dsp-alert {
temperature = <90000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "passive";
};
dsp-crit: gpu-crit {
dsp_crit: gpu-crit {
temperature = <135000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "critical";
Expand Down Expand Up @@ -457,7 +457,7 @@ ocp {
};

thermal-zones {
cpu-thermal: cpu-thermal {
cpu_thermal: cpu-thermal {
polling-delay-passive = <250>; /* milliseconds */
polling-delay = <1000>; /* milliseconds */

Expand Down Expand Up @@ -508,7 +508,7 @@ with many sensors and many cooling devices.
/*
* An IC with several temperature sensor.
*/
adc-dummy: sensor@0x50 {
adc_dummy: sensor@0x50 {
...
#thermal-sensor-cells = <1>; /* sensor internal ID */
};
Expand All @@ -520,7 +520,7 @@ thermal-zones {
polling-delay = <2500>; /* milliseconds */

/* sensor ID */
thermal-sensors = <&adc-dummy 4>;
thermal-sensors = <&adc_dummy 4>;

trips {
...
Expand All @@ -531,14 +531,14 @@ thermal-zones {
};
};

board-thermal: board-thermal {
board_thermal: board-thermal {
polling-delay-passive = <1000>; /* milliseconds */
polling-delay = <2500>; /* milliseconds */

/* sensor ID */
thermal-sensors = <&adc-dummy 0>, /* pcb top edge */
<&adc-dummy 1>, /* lcd */
<&adc-dymmy 2>; /* back cover */
thermal-sensors = <&adc_dummy 0>, /* pcb top edge */
<&adc_dummy 1>, /* lcd */
<&adc_dummy 2>; /* back cover */
/*
* An array of coefficients describing the sensor
* linear relation. E.g.:
Expand All @@ -548,22 +548,22 @@ thermal-zones {

trips {
/* Trips are based on resulting linear equation */
cpu-trip: cpu-trip {
cpu_trip: cpu-trip {
temperature = <60000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "passive";
};
gpu-trip: gpu-trip {
gpu_trip: gpu-trip {
temperature = <55000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "passive";
}
lcd-trip: lcp-trip {
lcd_trip: lcp-trip {
temperature = <53000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "passive";
};
crit-trip: crit-trip {
crit_trip: crit-trip {
temperature = <68000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "critical";
Expand All @@ -572,17 +572,17 @@ thermal-zones {

cooling-maps {
map0 {
trip = <&cpu-trip>;
trip = <&cpu_trip>;
cooling-device = <&cpu0 0 2>;
contribution = <55>;
};
map1 {
trip = <&gpu-trip>;
trip = <&gpu_trip>;
cooling-device = <&gpu0 0 2>;
contribution = <20>;
};
map2 {
trip = <&lcd-trip>;
trip = <&lcd_trip>;
cooling-device = <&lcd0 5 10>;
contribution = <15>;
};
Expand Down
44 changes: 26 additions & 18 deletions drivers/cpufreq/Kconfig.arm
View file
Original file line number Diff line number Diff line change
Expand Up @@ -26,13 +26,21 @@ config ARM_VEXPRESS_SPC_CPUFREQ


config ARM_EXYNOS_CPUFREQ
bool
tristate "SAMSUNG EXYNOS CPUfreq Driver"
depends on CPU_EXYNOS4210 || SOC_EXYNOS4212 || SOC_EXYNOS4412 || SOC_EXYNOS5250
depends on THERMAL
help
This adds the CPUFreq driver for Samsung EXYNOS platforms.
Supported SoC versions are:
Exynos4210, Exynos4212, Exynos4412, and Exynos5250.

If in doubt, say N.

config ARM_EXYNOS4210_CPUFREQ
bool "SAMSUNG EXYNOS4210"
depends on CPU_EXYNOS4210
depends on ARM_EXYNOS_CPUFREQ
default y
select ARM_EXYNOS_CPUFREQ
help
This adds the CPUFreq driver for Samsung EXYNOS4210
SoC (S5PV310 or S5PC210).
Expand All @@ -42,8 +50,8 @@ config ARM_EXYNOS4210_CPUFREQ
config ARM_EXYNOS4X12_CPUFREQ
bool "SAMSUNG EXYNOS4x12"
depends on SOC_EXYNOS4212 || SOC_EXYNOS4412
depends on ARM_EXYNOS_CPUFREQ
default y
select ARM_EXYNOS_CPUFREQ
help
This adds the CPUFreq driver for Samsung EXYNOS4X12
SoC (EXYNOS4212 or EXYNOS4412).
Expand All @@ -53,28 +61,14 @@ config ARM_EXYNOS4X12_CPUFREQ
config ARM_EXYNOS5250_CPUFREQ
bool "SAMSUNG EXYNOS5250"
depends on SOC_EXYNOS5250
depends on ARM_EXYNOS_CPUFREQ
default y
select ARM_EXYNOS_CPUFREQ
help
This adds the CPUFreq driver for Samsung EXYNOS5250
SoC.

If in doubt, say N.

config ARM_EXYNOS5440_CPUFREQ
bool "SAMSUNG EXYNOS5440"
depends on SOC_EXYNOS5440
depends on HAVE_CLK && OF
select PM_OPP
default y
help
This adds the CPUFreq driver for Samsung EXYNOS5440
SoC. The nature of exynos5440 clock controller is
different than previous exynos controllers so not using
the common exynos framework.

If in doubt, say N.

config ARM_EXYNOS_CPU_FREQ_BOOST_SW
bool "EXYNOS Frequency Overclocking - Software"
depends on ARM_EXYNOS_CPUFREQ && THERMAL
Expand All @@ -90,6 +84,20 @@ config ARM_EXYNOS_CPU_FREQ_BOOST_SW

If in doubt, say N.

config ARM_EXYNOS5440_CPUFREQ
tristate "SAMSUNG EXYNOS5440"
depends on SOC_EXYNOS5440
depends on HAVE_CLK && OF
select PM_OPP
default y
help
This adds the CPUFreq driver for Samsung EXYNOS5440
SoC. The nature of exynos5440 clock controller is
different than previous exynos controllers so not using
the common exynos framework.

If in doubt, say N.

config ARM_HIGHBANK_CPUFREQ
tristate "Calxeda Highbank-based"
depends on ARCH_HIGHBANK && CPUFREQ_DT && REGULATOR
Expand Down
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